4 Pics 1 Word Level 2214

Answer:
Audio
Hint
What is the answer to the 4 Pics 1 Word level with Headphones and a book, Audio mixer, Symbol of volume, and Different speakers in a room?

Hint
What is the answer to the 4 Pics 1 Word level with Headphones and a book, Audio mixer, Symbol of volume, and Different speakers in a room?